File:Topsy Turvy Black Holes.jpg

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DescriptionTopsy Turvy Black Holes.jpg	English: The magenta spots in this image show two black holes in the spiral galaxy called NGC 1313, or the Topsy Turvy galaxy. Both black holes belong to a class called ultraluminous X-ray sources, or ULXs. The magenta X-ray data come from NASA's Nuclear Spectroscopic Telescopic Array, and are overlaid on a visible image from the Digitized Sky Survey. ULXs consist of black holes actively accreting, or feeding, off material drawn in from a partner star. Astronomers are trying to figure out why ULXs shine so brightly with X-rays. NuSTAR's new high-energy X-ray data on NGC 1313 helped narrow down the masses of the black holes in the ULXs: the black hole closer to the center of the galaxy is about 70 to 100 times that of our sun. The other black hole is probably smaller, about 30 solar masses. The Topsy Turvy galaxy is located about 13 million light-years away in the Reticulum constellation.
Date	22 November 2013, 07:39:26
Source	http://www.nasa.gov/mission_pages/nustar/multimedia/topsy-turvy-black-holes-20131126.html#.UpkXqOig5w0
Author	NASA/JPL-Caltech/IRAP

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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current	22:42, 29 November 2013		1,400 × 1,400 (267 KB)	Stas1995 (talk \| contribs)	User created page with UploadWizard

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Height	720 px
Compression scheme	Uncompressed
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Software used	Adobe Photoshop CS6 (Macintosh)
File change date and time	16:41, 24 November 2013
Color space	sRGB
Date and time of digitizing	07:39, 22 November 2013
Date metadata was last modified	08:41, 24 November 2013
Unique ID of original document	xmp.did:529B59B9882168118083EF54596B9463